Co(II, III) Hydroxides Supported on Zeolite Acting as an Efficient and Robust Catalyst for Catalytic Water Oxidation with Ru(bpy)33+ Научная публикация
| Конференция |
4th International Symposium on the Catalysis for Clean Energy and Sustainable Chemistry 09-11 июл. 2018 , Bilbao |
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| Журнал |
Topics in Catalysis
ISSN: 1022-5528 , E-ISSN: 1572-9028 |
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| Вых. Данные | Год: 2019, Том: 62, Номер: 5-6, Страницы: 439-455 Страниц : 17 DOI: 10.1007/s11244-019-01158-1 | ||||||
| Ключевые слова | Water splitting One-electron oxidants Cobalt hydroxides Zeolite Oxygen evolution reaction | ||||||
| Авторы |
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| Организации |
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Информация о финансировании (2)
| 1 | Федеральное агентство научных организаций России | 0303-2016-0014 |
| 2 | Федеральное агентство научных организаций России | 0356-2016-0503 |
Реферат:
A novel highly efficient and stable for many cycles catalyst (1% Со-ZSM-5(17)) for water oxidation was developed using the method of polycondensation for stabilization of oxo/hydroxo complexes of cobalt (II, III) and nanosize Co3O4 in zeolite channels. In a weak-alkaline medium (pH 8.0, 9.2, 10.0) in the presence of a one-electron oxidant (Ru(bpy)33+), the catalyst provided the yield of oxygen as high as 56, 73 и 78% of the stoichiometric quantity, respectively. Catalysts based on ZSM-5 zeolite exhibited higher catalytic activity as compared to the catalysts based on the MOR, BEA, Y. Inspection of the electron states of cobalt in the Co-containing zeolite-based catalysts using TPR-H2 and UV–Vis DR techniques revealed that α-Co(OH)2-like polynuclear clusters and hydrocomplexes stabilized in the zeolite channels were most active to catalytic oxidation of water, while their transformation to Co3O4-like clusters/nanoparticles and Co2+ oxocomplexes, respectively, during thermal treatment led to some decrease in the catalyst efficiency. Coarsening of Co3O4-like clusters/nanoparticles caused the further decrease in the system efficiency. The minimal activity was observed with the catalysts containing predominantly isolated Co2 +Oh ions. The result obtained indicates a kind of at least polynuclear structure of the catalytically active center ConOx, where n > 2.
Библиографическая ссылка:
Yashnik S.A.
, Chikunov A.S.
, Taran O.P.
, Salnikov A.V.
, Parmon V.N.
Co(II, III) Hydroxides Supported on Zeolite Acting as an Efficient and Robust Catalyst for Catalytic Water Oxidation with Ru(bpy)33+
Topics in Catalysis. 2019.
V.62. N5-6. P.439-455. DOI: 10.1007/s11244-019-01158-1
WOS
Scopus
РИНЦ
Co(II, III) Hydroxides Supported on Zeolite Acting as an Efficient and Robust Catalyst for Catalytic Water Oxidation with Ru(bpy)33+
Topics in Catalysis. 2019.
V.62. N5-6. P.439-455. DOI: 10.1007/s11244-019-01158-1
WOS
Scopus
РИНЦ
Файлы:
Полный текст от издателя
Даты:
| Опубликована online: | 16 мар. 2019 г. |
| Опубликована в печати: | 1 июн. 2019 г. |
Идентификаторы БД:
| Web of science | WOS:000473213000003 |
| Scopus | 2-s2.0-85063079724 |
| РИНЦ | 41874473 |
| Chemical Abstracts | 2019:672367 |
| OpenAlex | W2921871997 |